ZyXEL NBG-460N User Guide - Page 155
NAT Application Screen
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Chapter 11 Network Address Translation (NAT) Table 55 Network > NAT > General LABEL DESCRIPTION Server IP Address In addition to the servers for specified services, NAT supports a default server. A default server receives packets from ports that are not specified in the Application screen. Wake up this target by Wake On LAN If you do not assign a Default Server IP address, the NBG-460N discards all packets received for ports that are not specified in the Application screen or remote management. Select this to use WoL (Wake On LAN) to turn on the server specified in the Server IP Address field when packets are received on ports not specified in the Application screen. Apply Reset Note: For more information on Wake On LAN see Section 22.6 on page 281. Click Apply to save your changes back to the NBG-460N. Click Reset to begin configuring this screen afresh. 11.4 NAT Application Screen Port forwarding allows you to define the local servers to which the incoming services will be forwarded. A port forwarding set is a list of inside (behind NAT on the LAN) servers, for example, web or FTP, that you can make accessible to the outside world even though NAT makes your whole inside network appear as a single machine to the outside world. Use the Application screen to forward incoming service requests to the server(s) on your local network. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server. The port number identifies a service; for example, web service is on port 80 and FTP on port 21. In some cases, such as for unknown services or where one server can support more than one service (for example both FTP and web service), it might be better to specify a range of port numbers. In addition to the servers for specified services, NAT supports a default server. A service request that does not have a server explicitly designated for it is forwarded to the default server. If the default is not defined, the service request is simply discarded. Note: Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to your ISP. NBG-460N User's Guide 155